Can I use libraries like Pandas or Requests in n8n Python nodes?

No, n8n's Python environment is limited to the standard library. You should use the HTTP Request node for APIs and standard Python lists/dicts for data manipulation.

How do I access webhook data in an n8n Python node?

Webhook data is nested under the 'body' property. Use _json['body'] or the safer _json.get('body', {}) to access your payload.

What is the required return format for n8n Python nodes?

You must always return a list of dictionaries where each item has a 'json' key, for example: return [{'json': {'id': 1}}].

When should I choose Python over JavaScript in n8n?

Use Python only when you need specific standard library functions (like statistics or math) or if you are significantly more comfortable with Python syntax for data transformations.

How do I access all items from a previous node?

Use the helper _input.all() to retrieve an array of all items, which is the recommended method for batch processing and aggregations.

n8n Python Code Expert

Name: n8n Python Code Expert
Author: monmacllcapp

bymonmacllcapp

0•

Productivity & Workflow

Provides expert guidance and implementation patterns for writing compliant Python code within n8n workflow nodes.

This skill equips Claude with specialized knowledge for writing efficient and compliant Python scripts within n8n's Code nodes. It helps developers navigate the unique constraints of the n8n environment, such as the mandatory list-of-dictionaries return format, specific data access patterns like _input.all(), and the limitation to the Python standard library. By enforcing best practices—including the 'JavaScript-first' recommendation—this skill ensures that Python is used only when necessary for complex data transformations, regex operations, or statistical analysis, while avoiding common pitfalls like external library dependency errors.

Key Features

01Optimized patterns for n8n Python (Beta) and Native execution modes

02Advanced data access patterns for webhooks and multi-node referencing

03Strict enforcement of mandatory n8n return formats

04Error prevention for common n8n Python mistakes and KeyErrors

050 GitHub stars

06Guidance on Python standard library usage within serverless constraints

Use Cases

01Executing statistical analysis or mathematical calculations using the Python standard library

02Performing complex data transformations and filtering on large batch datasets

03Extracting specific data patterns from strings using advanced regular expressions

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add monmacllcapp/skill-forks n8n-code-python

For use in Claude.ai and ChatGPT

Download Skill